Just got this one and I'm 98% certain it is by Frank Eisner, the flowers are right in petal number and style and the typical grid of small bubbles are on the underside of the petals. The mound shape seems right too.
But I've never seen this colour of mound before by him brown/amber rather than the usual speckled green and its huge 3 3/4" (96mm) diameter by 2 7/8" (73mm) tall which has just made me question it a little.
Any thoughts?
Nick